five of the women were killed in the largest city. >> they shot her from behind. there are no threats, nothing. she is my daughter. >> police say the killings were well coordinated and occurred simultaneously in three areas of the city. the sixth woman, believed to be 17, was shot to death in egypt. on monday-- in peshawar. all of the dead were working on a three day anti-polio campaign. no group claimed responsibility, but investigators believe the taliban carried out the attack. has been vocal against campaign -- vaccinations. >> they think the vaccine was used for identifying -- how this was used in case of locating osama bin laden. i think after that, this kind -- they became more targets of the taliban >> the government suspended at the vaccination campaign in karachi. this is not the first time they have targeted vaccination programs. in july, while local volunteer were shot and two volunteers were wounded. the government, along with un agencies, is on a campaign to immunize 34 million children under the age of 35. with health workers being attacked, eradica